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NEET UG PHYSICS MCQ: WORK-ENERGY-POWER

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The potential energy of a certain spring when stretched through a distance s is 10 J. The amount of work (in joule) that must be done on this spring to stretch it through additional distance s will be

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Correct option: A

30

Option A (30) is correct because the work done is proportional to the square of the distance stretched, so stretching an additional 's' requires 3 times the initial work.

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